/* Copyright (C) 
 * 2013 - wupeng
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 */

#include "stack.h"

stack* pTop = NULL;

Ret_Status stack_init()
{

}

stack* stack_push(stack** pStack,stack* data)
{
    stack* pTemp = NULL;

    if((pStack == NULL) || (data == NULL))
    {
        ERROR("stack error! or data is NULL!\n");
        return NULL;
    }
    
    pTemp = *pStack;

    pTemp->data.id = data->data.id;
    pTemp->data.name = data->data.name;

    data->pPrev = pTop;
    pTop = data;

    return *pStack;

}

stack* stack_pop(stack** pStack)
{
    stack* pTemp = NULL;

    if(pStack == NULL)
    {
        ERROR("stack is null!\n");
        return NULL;
    }

    pTop = pTop->pPrev;
}

uint8 stack_full()
{

}

uint8 stack_empyt()
{

}
